As seen. Superior 6L80 6L90 8L90 Sure Cool System Upgrade STL010 Fits all 2014-up 6L80/90E AND NOW FITS 8L80/90E 2016-up Superior’s Cooler Flow bypass valve kit with TransLab’s patented and patent pending Flow~Control™ cooler bypass technologies allows full-time cooler flow and lube to parts “so you’re not hot under the collar”…you’re SURE~COOL® • Built-in safety bypass • Immediate cooler fill. • Immediate accurate fluid level check without warm-up cycle • Reduced average operating temperatures by as much as 20% • Reduced risk of overheating while under load, Increased ATF life.
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